ZQuiet's first order coupon code gives you 15% off your opening purchase. The Ozlo Sleepbuds are currently on sale at 21% off, which beats the first order code if you are buying that product, and ZQuiet offers free shipping on orders over $25.
Buying the Ozlo Sleepbuds as a first time customer: The 21% off sale on the Ozlo Sleepbuds is your best option here. On a $150 order of Ozlo Sleepbuds at full price, for example, 21% off brings the price to $118.50, saving you $31.50. The first order coupon code would save you $22.50 on the same basket, so the sale is worth $9 more. The sale applies to the Ozlo Sleepbuds themselves only; add other items to your order and the first order code may work out better for the full basket.
Buying other ZQuiet products as a first time customer: Use the first order coupon code at the top of this page. It takes 15% off your entire order at checkout, and cannot be combined with other offers.
Any order over $25: You qualify for free shipping, cutting your total delivery cost to zero. Free shipping on orders over $50 is also available if that threshold applies to you, but both amounts remove shipping fees from your final cost.
To pick between the first order coupon and the Ozlo Sleepbuds sale, compare your final cart total under each option and take whichever is lower. The sale is fixed to that product; the code applies across your whole order, so the code wins if you are mixing Ozlo Sleepbuds with other items. The code cannot be stacked with any other offers, so you cannot use it alongside the sale or free shipping.
Our records show 9 of our team's checkout tests across 9 ZQuiet offers in the 12 months to October 2026, with 5 of them backed by a screenshot. The typical code in that period was 15% off, matching the first order offer in front of you today; the biggest code we saw was 20% off in March 2026.